GMC 2006 Sierra - Manual (Page 552)

If you want to purchase service information, see Service
Publications Ordering Information on page 7-15.
Owner Checks and Services on page 6-11 tells you what
should be checked, when to check it, and what you can
easily do to help keep your vehicle in good condition.
The proper replacement parts, fluids, and lubricants
to use are listed in Recommended Fluids and
Lubricants (Gasoline Engine) on page 6-14 and Normal
Maintenance Replacement Parts (Gasoline Engines) on
page 6-18. When your vehicle is serviced, make sure
these are used. All parts should be replaced and all
necessary repairs done before you or anyone else drives
the vehicle. We recommend the use of genuine GM parts.
Scheduled Maintenance
(Gasoline Engine)
This maintenance section applies to vehicles with a
gasoline engine. If your vehicle has a diesel engine,
see the maintenance schedule section in the
DURAMAX
® Diesel Engine Supplement.
When the CHANGE ENGINE OIL message comes on, it
means that service is required for your vehicle. Have your
vehicle serviced as soon as possible within the next
600 miles (1 000 km). It is possible that, if you are driving
under the best conditions, the engine oil life system may
not indicate that vehicle service is necessary for over a
year. However, your engine oil and filter must be changed
at least once a year and at this time the system must be
reset. Your GM Goodwrench
® dealer has GM-trained
service technicians who will perform this work using
genuine GM parts and reset the system.
If the engine oil life system is ever reset accidentally, you
must service your vehicle within 3,000 miles (5 000 km)
since your last service. Remember to reset the oil life
system whenever the oil is changed. See Engine Oil Life
System (Gasoline Engine) on page 5-23 for information
on the Engine Oil Life System and resetting the system.
When the CHANGE ENGINE OIL message appears,
certain services, checks, and inspections are required.
Required services are described in the following for
“Maintenance
I ” and “Maintenance II .” Generally, it is
recommended that your first service be Maintenance I ,
your second service be Maintenance II , and that you
alternate Maintenance I and Maintenance II thereafter.
However, in some cases, Maintenance II may be
required more often.
Maintenance I — Use Maintenance I if the CHANGE
ENGINE OIL message comes on within 10 months since
the vehicle was purchased or Maintenance
II was
performed.
Maintenance II — Use Maintenance II if the previous
service performed was Maintenance I . Always use
Maintenance II whenever the message comes on
10 months or more since the last service or if the
message has not come on at all for one year.
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